Customer Testimonials

SepiSolar sincerely cares about our customers and solving their design and engineering challenges. Here are just a few examples of why large and small solar contractors, developers, and EPCs trust SepiSolar for design and engineering.

Using SepiSolar for designing and engineering Swell Energy’s solar-plus-storage systems was a no-brainer. Storage is complicated, so we wanted to work with a team of U.S.-based quality engineers who could speak ‘fluent storage’ and get out accurate plan sets quickly and with minimal AHJ revisions. If you’re looking for a quality design partner who knows how to get storage permit plans approved in California, trust the SepiSolar team.”

Andrew Meyer,
Co-Founder, Swell Energy

We’ve been working with SepiSolar since 2010 for our residential, commercial, and industrial solar and energy storage projects. The reason we’ve worked with them for so long is as a result of the quality of work and expertise. Xero Solar stands behind all of our installations, and this is only as good as the design they are built on. We need to have confidence that we’re building systems based on sound technical plans and designs. Plans that we have confidence that will result in safe, effective, and compliant systems is crucial. The price of failure with defects on a finished project is severe, and it’s simply not worth trying to save a few dollars upfront only to be bitten down the road with failures. That’s why we partner with SepiSolar for all of our engineering and design needs for solar and storage.”

Ben Lochtenberg,
CEO of Xero Solar

Sunlight Electric has been working with SepiSolar since 2012, and they’re our trusted partner for quality solar engineering work. Their engineering team is current on code, best practices, and their work product is well-received by AHJs. The online ‘cloud’ tools they offer are great for ensuring all team members have what they need and are kept in the loop, and we’ve found them highly responsive, including turnaround responses to AHJ comments and requests.”

Rob Erlichman,
Founder of Sunlight Electric

SepiSolar is a key partner within our business. Their expertise, dedication, and experience through all facets of solar PV-plus-battery design and engineering help us maintain a leading edge in our market, giving us the ability to offer truly custom-designed systems for our Hawaii customers.”

Clinton O’Neill,
VP of Operations, Island Pacific Energy

We submitted our RFP proposal to the utility today, and I wanted to thank SepiSolar for the excellent service you provided. Your ability to provide a detailed engineering design on a tight turnaround time was impressive. Your input helped us secure an updated solar design that met all of the RFP’s requirements. We look forward to working with SepiSolar again on future projects.”

Travis Stowers,
Power System Application Engineer, Doosan GridTech

“SepiSolar has been providing us with commercial solar engineering services for the last three years, producing our construction drawings and providing us with useful insight to difficult questions that we run into. We are more than happy with the results, as well as with the relationship that we have with them and will not only continue to use them, but would recommend them to anyone.”

Eric Virkler, P.E.,
Director of Commercial Solar, Earthlight Technologies

Learn more about SepiSolar’s services.

Learn more about SepiSolar’s services.


CA Small Business Enterprise

Certification ID:

Bidder/Supplier ID:

NAICS Codes:
541330 – Engineering services
541340 – Drafting services
541490 – Other specialized design services
541618 – Other management consulting services
541690 – Other scientific and technical consulting services
541990 – All other professional, scientific, and technical services

D-U-N-S number:

811024, 81101701, 81101516, 81101604, 43232614, 81101505

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